maxflinn:
By setting the [Picture Overscan] option in the [Setup] submenu to "Off", you can achieve zero overscan, and - with a 1080 source - 1:1 pixel mapping. This option is only available when aspect ratio is set to [Auto] or [16:9], and can be adjusted independently for SD and HD content. With the former you're more likely to see interference at the edges of the image so I usually only reserve [Picture Overscan] "Off" for high-def material.
there you go ...
Thanks for the explanation. Yeah, I have picture overscan OFF for HD stuff, and ON for SD - I think the interference at the edges is what I get on SD, which is why I set the Overscan ON.
Back to the OP, my panasonic saves the settings automatically depending on the input. ie when I use my Blu Ray player it automatically goes onto THX mode (which I selected) and when I go to AV1 it is set on to Cinema with my saved contrast, brightness and sharpness settings. All I did was adjust them on each source and the TV remembered the changes and uses these settings automatically - I didn't have to do anything else.
I think that you can only save settings by input, not by source. ie my blu ray player via HDMI1 is THX mode regardless of the source being displayed (blu ray or dvd).